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PreviousValueRecordCollection exception: value cannot be null.  Parameter name: s

Question asked by keegan on Mar 3, 2015

I have an issue where by when completing a workflow task programatically ULS reports 14 errors generated by Nintex code. There are 7 duplicate ULS entries with a CorrelationID followed by a 10 second pause and then another 7 without the CorrelationID:

 

Error processing item updated event.: System.ArgumentNullException: Value cannot be null.  Parameter name: s  

at System.IO.StringReader..ctor(String s)  

at Nintex.Workflow.PreviousValueRecordCollection.1xk=(String 2Bk=)  

at Nintex.Workflow.ConditionalWorkflowStartReceiver.oRY=(SPItemEventProperties wBk=, AutoStartRuleType wRk=, Boolean whk=)  

at Nintex.Workflow.ConditionalWorkflowStartReceiver.ItemUpdated(SPItemEventProperties properties) (Build:2401)

 

(screenshot)

 

Please can this be investigated?

 

Note, this item is more a less the same error as in unsolved thread: Value cannot be null. Parameter name: s

 

Thanks

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